Engineer industry wearing safety uniform ,black gloves and gas mask under checking chemical tank in industry factory work.
Schlüsselwörter
industry,
men at work,
factory,
breathing,
chemical,
chemistry,
concept,
danger,
dangerous,
disaster,
dust,
ecology,
environment,
equipment,
face,
filter,
gas,
gas-mask,
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health,
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helmet,
human,
industrial,
man,
mask,
medicine,
military,
people,
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pollution,
portrait,
protection,
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respirator,
risk,
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single,
stop,
tank,
technology,
toxic,
warm,
work,
yellow
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